11element plan

160m double L antenna - Planning and modeling a special L antenna for Top Band

A cheap dual band ground plane antenna - This little antenna is cheap and easy to build, lightweight, and very functional on 2 meters and 70 centimeters by NA4IT

VHF UHF Ground Plane Antennas - Ground plane antennas for 144, 222 and 440 MHz

2 Meter Groundplane Antenna - 2 Meter, 5/4 Wave Antenna project, this antenna is unique in that it is enclosed entirely in ¾” PVC which makes the design a little more complicated.

Home Made Off Center Fed Dipole - Project with pictures and plans for an HF off center fed dipole by KB1NWH

Moxon for 11 m - A moxon antenna for 27 Mhz band

Slim Jim Antenna for 144 Mhz - A slim Jim antenna plan for two meters band

Traps for 160 meters band - Extending a 40/80 trapped dipole to 160 meter band

Vertical Antenna for 20 15 10 meters - A small, multiband vertical which cover 20, 15, 10 meter amateur radio bands. This easy to build ham radio antenna could serve as an emergency or field day antenna.

HB9CV antenna - An high performance directional antenna plan with dimensions for 40 to 10 mt bands

G5RV Antenna by PA1GF  ^new - Sizing of G5RV Antenna with plan and the ZS6BKW variation

UK Band Plan - RSGB Bandplan, effective from 1st December 2006

HALO Project makes amatuer rocketry history - Launch of a hybrid rocket from high altitude by untsville Alabama L5 Society

Submarine Communications - Submarine Communications Master Plan - December 1995

HamStudy.org - Study for your ham radio license with hamstudy.org, a free suite of study tools with user contributed explanations for the questions. Learning flashcards and smart practice tests ensure that you see and learn the full pool while statistics enable you to track your progress.